Results 111 to 120 of about 5,024 (208)

A Compositional Study (pXRF) of Early Holocene Obsidian Assemblages from Cyprus, Eastern Mediterranean

open access: yesOpen Archaeology, 2019
This paper presents the results of the geochemical characterisation of complete obsidian assemblages dating to the Early Aceramic Neolithic (8200–6900 Cal BC) and located in Cyprus, eastern Mediterranean.
Moutsiou Theodora
doaj   +1 more source

The Lord-Collins Site (MAS# 3.12): A Late Pleistocene Human Use of Southeastern Maine, USA [PDF]

open access: yes, 2013
Field report on test excavations of a possible Late Pleistocene locality.British ...
Bradley, Bruce A.
core  

Soil salinity hazard monitoring with portable X-ray fluorescence spectrometry and electrical conductivity meters

open access: yesFrontiers in Soil Science
Soil salinization is a major form of land degradation that diminishes soil fertility and health, thereby severely impacting the economic development and livelihood improvement of agrarian countries worldwide.
Tarik El Moatassem   +2 more
doaj   +1 more source

Portable XRF and Vis-NIR spectrometry for predicting chemical properties of forest soils in the Amazon: Insights into sensor data dimensionality reduction

open access: yesSoil Advances
Proximal sensor data integrated with machine learning algorithms have been successful in assessing soil chemical parameters. The accuracy of these sensors for assessing soil parameters in tropical forest soils is still limited.
Quésia Sá Pavão   +8 more
doaj   +1 more source

The Crucifix Chapel of Aci Sant’Antonio: Newly discovered frescoes

open access: yesArcheomatica, 2014
In this paper we present the discovery of a series of frescoes for the first time, revealed in 2012 during a restoration carried out in the Crucifix chapel in the Mother Church of Sant’Antonio in the town Aci Sant’Antonio (Catania, Sicily).
Antonino Cosentino   +3 more
doaj  

Placas de contextos megalíticos del centro de Portugal. Los casos de Arquinha da Moura (Tondela) y de Mamaltar de Vale de Fachas (Viseu)

open access: yesZephyrus
La oportunidad de estudiar dos placas decoradas de piedra halladas en contextos megalíticos de la región de Viseu/Tondela, una decorada y conocida desde 1912, la otra inédita hasta ahora, ha supuesto un valor añadido al conocimiento de esta categoría de ...
Raquel Vilaça   +3 more
doaj   +1 more source

Happamien sulfaattimaanäytteiden analysointi kannettavilla pXRF- ja pLIBS-analysaattoreilla

open access: yes, 2023
Tiivistelmä. Happamien sulfaattimaiden analysointi ja tutkiminen on tärkeää ympäristön tilan arvioimiseksi ja mahdollisten ympäristöhaittojen tunnistamiseksi rannikkoalueilla. Viimeisen vuosituhannen alusta alkaen kannettavat analysaattorit, pXRF (kannettava röntgenfluoresenssi) ja pLIBS (kannettava laserindusoitu plasmaspektroskopia), ovat suosittuja ...
openaire   +1 more source

First discovery of charcoal-based prehistoric cave art in Dordogne. [PDF]

open access: yesSci Rep, 2023
Reiche I   +3 more
europepmc   +1 more source

Sourcing obsidian from early prehistoric sites on the Arad plain, Western Romania

open access: yesMateriale și Cercetări Arheologice
Portable X‑ray Fluorescence Spectroscopy (pXRF) was used to obtain source determinations for 109 obsidian artefacts from seven sites on the Arad Plain in western Romania, belonging to the Neolithic and Eneolithic periods.
Boroneanț, A., Sava, V., Bonsall, C.
doaj   +1 more source

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